Interspaced Repeat Sequences Confer the Regulatory Functions of AtXTH10, Important for Root Growth in Arabidopsis

An interspaced repeat sequence (IRS) is a unique sequence similar to prokaryotic CRISPR in structure. In this study, 1343 IRSs were identified in the Arabidopsis genome. Functional annotation of the IRS-related genes showed that they were associated with various growth and development processes. Mor...

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Main Authors: Jun Cao, Yueqing Lv, Xiang Li
Format: Article
Language:English
Published: MDPI AG 2019-05-01
Series:Plants
Subjects:
Online Access:https://www.mdpi.com/2223-7747/8/5/130
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author Jun Cao
Yueqing Lv
Xiang Li
author_facet Jun Cao
Yueqing Lv
Xiang Li
author_sort Jun Cao
collection DOAJ
description An interspaced repeat sequence (IRS) is a unique sequence similar to prokaryotic CRISPR in structure. In this study, 1343 IRSs were identified in the Arabidopsis genome. Functional annotation of the IRS-related genes showed that they were associated with various growth and development processes. More than 30% of the IRSs were located in promoter regions. Deletion of some IRSs affected promoter activity, suggesting their roles in the regulation of gene expression. Next, the function of the <i>AtXTH10</i> gene was further analyzed, and the expression of this gene was regulated by IRSs in its promoter region. Transgenic and mutant plants analysis indicated that the <i>AtXTH10</i> gene was associated with root development by affecting cell wall structure. Moreover, the expression profiles of some key genes involved in root development signaling pathways were also affected by <i>AtXTH10</i>. These results suggest that IRSs could be involved in regulating the expression of genes with important roles in plant development.
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spelling doaj.art-7e5247ea9c164be88ca204232a1a74172022-12-21T19:23:45ZengMDPI AGPlants2223-77472019-05-018513010.3390/plants8050130plants8050130Interspaced Repeat Sequences Confer the Regulatory Functions of AtXTH10, Important for Root Growth in ArabidopsisJun Cao0Yueqing Lv1Xiang Li2Institute of Life Sciences, Jiangsu University, Zhenjiang 212013, ChinaInstitute of Life Sciences, Jiangsu University, Zhenjiang 212013, ChinaInstitute of Life Sciences, Jiangsu University, Zhenjiang 212013, ChinaAn interspaced repeat sequence (IRS) is a unique sequence similar to prokaryotic CRISPR in structure. In this study, 1343 IRSs were identified in the Arabidopsis genome. Functional annotation of the IRS-related genes showed that they were associated with various growth and development processes. More than 30% of the IRSs were located in promoter regions. Deletion of some IRSs affected promoter activity, suggesting their roles in the regulation of gene expression. Next, the function of the <i>AtXTH10</i> gene was further analyzed, and the expression of this gene was regulated by IRSs in its promoter region. Transgenic and mutant plants analysis indicated that the <i>AtXTH10</i> gene was associated with root development by affecting cell wall structure. Moreover, the expression profiles of some key genes involved in root development signaling pathways were also affected by <i>AtXTH10</i>. These results suggest that IRSs could be involved in regulating the expression of genes with important roles in plant development.https://www.mdpi.com/2223-7747/8/5/130IRSspromotergene expression regulationxyloglucan endotransglucosylase/hydrolaseroot development
spellingShingle Jun Cao
Yueqing Lv
Xiang Li
Interspaced Repeat Sequences Confer the Regulatory Functions of AtXTH10, Important for Root Growth in Arabidopsis
Plants
IRSs
promoter
gene expression regulation
xyloglucan endotransglucosylase/hydrolase
root development
title Interspaced Repeat Sequences Confer the Regulatory Functions of AtXTH10, Important for Root Growth in Arabidopsis
title_full Interspaced Repeat Sequences Confer the Regulatory Functions of AtXTH10, Important for Root Growth in Arabidopsis
title_fullStr Interspaced Repeat Sequences Confer the Regulatory Functions of AtXTH10, Important for Root Growth in Arabidopsis
title_full_unstemmed Interspaced Repeat Sequences Confer the Regulatory Functions of AtXTH10, Important for Root Growth in Arabidopsis
title_short Interspaced Repeat Sequences Confer the Regulatory Functions of AtXTH10, Important for Root Growth in Arabidopsis
title_sort interspaced repeat sequences confer the regulatory functions of atxth10 important for root growth in arabidopsis
topic IRSs
promoter
gene expression regulation
xyloglucan endotransglucosylase/hydrolase
root development
url https://www.mdpi.com/2223-7747/8/5/130
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AT yueqinglv interspacedrepeatsequencesconfertheregulatoryfunctionsofatxth10importantforrootgrowthinarabidopsis
AT xiangli interspacedrepeatsequencesconfertheregulatoryfunctionsofatxth10importantforrootgrowthinarabidopsis